M etal-planing m ac h in e



(No Model.)

L. W. POND. METAL PLANING MAGHINB. No. 351,937. Patented Nov. 2, 1886.

UNJTED STATES PATENT OFFICE.

, LUOIU-S'W. POND, OF WORCESTER, MASSACHUSETTS.

M ET1A1L- PL'A Ni NG "MACH lNE.

SPECIFICATION forming part of 'LettersPatent No, 351,937, dated November2, 1886.

' Applicationfilcd January 26, 1886. Serial No. H1803. No modeLi Toall-whom it may concern:

'Be known that I, LUOIUS W. Fonda-citizen ofthe United States, residingat'VVorcester,- in the county of Worcester and State ofMassachnsetts,-have invented certain newanduseful Improvements inMetal-Planing Machines, of which the following is aspecification,accompanied by drawings which illustrate a metalplaningmachine embodying my invention, and in which Figure l is a sideelevation; Fig. 2, a plan View, partly in section. Fig. 3 is a detachedview of a portion. of the belt-shipping mechanism. Fig. 4 is a frontelevation of tlie'same; and Fig. 5 is an end view of the'bed.

Similar letters refer to similar part-sinth'e several views.

My invention consists inproviding facilities for operating upon work oftoo great length to ,pass between the upright frame of theplaning-machi11e by means of a throat or overhanging head; in providinga slidingcovemsliding in grooves'in the inner side of the'ways, for

the purpose of protecting the shipping mechanism; in the usefofindependent shipping devices for each of the driving-telts, whereby thetime at which the driving-beltsare shifted relatively to each other canbe changed-to suit the varying conditions of the belts; andin-cer;

tain details of construction and operation, as

hereinafter described, and specifically set forth in the claims. t

A denotes the bed; B, the reciprocating table, moving 011 the ways a a,-O, the upright sides supporting thehead; D D the drivingpulleys; D D theloose pulleys; E E, sliding rods, each carrying at its outer endthebelteyes b b, inclosing the .drivingbelts 1 and 2,

moving in opposite directions.

F is a bell-crank'lever pivoted n-ponthe upper side of the plate 0,attached to the'inside of the bed A, and having the arm at pivoted tothe sliding belt-rod E, and the arm d. at tached, by the connecting-rodf, with the shippingdevices hereinafterdescribed. Similarly, thebell-crank F is pivoted on the under side of the plate a, with one ofits arms, 6, pivoted to the sliding belt-rod E and the other arm, 6,connected with the shipping devices by the connectingrod f.

J onrnaled in the side of the bed is the sleeve G, carrying at its outerend the arm G and at its inner end the arm G to which theconnecting-rodfis pivoted.

H, having at its outer end an arm, H, and at its inner end the arm H",to which the connectingrodf is pivoted. table I attach the dog I,adjustable along the side of the table, and having an adjustingscrew,1', arranged so that when the table moves to theleft'the screw willstrike thespur you the lever G, and dog I also hasa spur, 2', pro.-jecting outwardly and downwardly and arranged to strike the edge of thearm H. The position of the arms G and H, at the beginning ofthe'movement of the table to the left, is shown in Fig. 1. The screwi-is adjusted to strike-the spur g and move the arm G, and

through its connected mechanism start the driving beltl from the pulleyD in advance of the impact of the spur 13 against the arm H, andconsequent motion of the belt 2 from the loose pulley D to fast pulleyD.

At the end of the return motion of thetable .just described, thepositions of the arms G H are shown in Fig. 4, with the arm G slightlyin advance of the arm H, effecting the shipping of the bellsandreversing the motion ofthe table.

A dog, J, is adjustably attached to the side of the table, said doghaving a projecting finger,

j, arranged to strike the spur h on the arm H as the table moves to theright, and through the connected shipping mechanism move the belt 2 inadvance of the contact of the adj nsting-screw j with the edgaof the armG and consequent shifting of the belt 1 from the loose pulley D". As thespur It moves in an arc of a circle and the finger-j in a straight line,the

.spur h will be carried past its highest vertical position, so thefingerj will pass above it, allowing the arm H to remain at restuntilmoved by the advancing screw j, which is placed on To the side of thethe dog J inposition to strike the edges of 5 both the arms G and H,bringing them together. in the position shown in Fig. 1, effecting theshifting of the driving-belts,and again reversing the motion of thetable.

I'am aware that a mechanism has been used consisting of sliding rodscarrying belt-eyes and actuated bya bell-crank operated by a vibratingarm, which is moved by dogs adj ustable in position on the side ofthetable; but in such devices the motion of the belt-eyes is uniform,and the lead oradvance madeinshipping the driving-belt from off a tightpulley before shipping the oppositely-running belt upon a tight pulleyis constant and unvarying through all the changing conditions of thebelts, which, in modifying their tendencies to stick upon the pulleys,requiresa variation in the lead of the driving-belt, which in myimproved shipping mechanism can easily be secured by changing theadjusting-screws i and j, and thereby varying the period between thecontact ofthe screw 2' and spur i,or between the fingerj and screw j.Neither do I claim,broadly, the use of mechanism by which the lead ofthe belts may be varied, as this has been accomplished in beltshippingdevices consisting ot'a single belt-actuating mechanism by chang ing therelative positions ofthe operating parts. In the beltshipping deviceforming the subject of my presentinvention I employ two distinct andindependently acting mechanismsbetween the reciprocating table and thebelts, whereby I am able to change the lead of the belts, as desired, bymeans of a change confined to the adjustable dogs attached to thereciprocating table and without any rearrangement of the shippingmechanism intervening between said dogs and the driving-belts.

It is frequently desirable to plane transversely across lcng pieceswhich will not pass between the upright sides (J, and in such cases ithas been customary to extend the cuttingtool farther out from theupright. I accomplish the same result and avoid the necessity ofextending the cuttingtool forward, which has many disadvantages, byforming a throat,

K, at the plane of the table-top, allowing the work which extendslaterally beyond the sides 0 to pass beyond the cutting-tool. Thisthroat may be formed in the sides themselves or by making an overhanginghead.

Upon the inside of the ways a a, as seen in Fig. 5, I form grooves ItIt, in which I slide a plate, L, forming a cover for the protection ofthe shipping or other mechanism which may be placed within the bed.

\Vhat I claim as my invention, and desire to secure by Letters Patent,is

1. In a metal-planing machine, the combination, with a pair ofrodsprovided with belt-eyes arranged to ship the driving-belts of themachine and adjustable dogs attached to the reciprocating table, of twoindependentlyacting operating mechanisms, each connected with one ofsaid rods and arranged to be act uated by said dogs, substantially asdescribed, and for the purpose set forth.

2. The combination, with a vibrating arm attached to a sleeve journaledin the bed and actuated by the reciprocating table, and a vi- ,G andH,journaled in concentric bearings in the bed of the machine, the arm Ghaving a spur, g, and the arm H having a spur, h, said arms havingconnected mechanism for actuating the belt-eyes and shipping thedrivingbelts, of dogs I and J adjustable on the reciprocating table,said dog I adapted to move the arm G, and having a spur, 2', adapted tomove the arm H, said dog J adapted to move the arm G and having a fingeradapted to move the arm H in advance of the arm G, as described, and forthe purpose set forth.

5. In a metal-planing machine, the combination, with vibrating armsjournaled in the bed of the machine and having connected belt-shippingmechanisms, substantially as described, of dogs adjustably attached tothe reciprocating table and adapted to move said arms at differentperiods of time, as described, and for the purpose set forth.

6. In a metal-planing machine having two independently-actingbelt-shipping mechanisms and actuating-dogs attached to thereciprocating table, the combination, with said dogs, of adjlisting-screws whereby the relative movement of the belt-shippingmechanisms is varied, substantially as described.

7. In a metal-planing machine, the ways a a, provided with grooves ontheir inner sides for the reception of a covering-plate, substantiallyas described.

LUOIUS IV. POND.

\Vitnesses:

RUFUS B. FOWLER, S. B. I. GODDARD.

